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Spirometry and lung function

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https://www.readbyqxmd.com/read/29143374/asthma-and-lung-function-in-adulthood-after-a-viral-wheezing-episode-in-early-childhood
#1
Katri Backman, Hertta Ollikainen, Eija Piippo-Savolainen, Kirsi Nuolivirta, Matti Korppi
BACKGROUND: Viral etiology of infection has a significant role in the long-term outcome of early-childhood wheezing. OBJECTIVE: This study examines asthma and lung function in adulthood after early-childhood wheezing induced by respiratory syncytial virus (RSV) and rhinovirus (RV). METHODS: A total of 100 children were hospitalized for a wheezing episode at less than 24 months of age from 1992 to 1993 in Kuopio University Hospital (Finland)...
November 16, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29139062/tools-in-asthma-evaluation-and-management-when-and-how-to-use-them
#2
REVIEW
Anna Mulholland, Alana Ainsworth, Naveen Pillarisetti
The goals of asthma management are accurate diagnosis, prompt initiation of treatment and monitoring of disease progression to limit potential morbidity and mortality. While the diagnosis and management is largely based on history taking and clinical examination, there are an increasing number of tools available that could be used to aid diagnosis, define phenotypes, monitor progress and assess response to treatment. Tools such as the Asthma Predictive Index could help in making predictions about the possibility of asthma in childhood based on certain clinical parameters in pre-schoolers...
November 15, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29139033/relationship-between-airflow-obstruction-and-coronary-atherosclerosis-in-asymptomatic-individuals-evaluation-by-coronary-ct-angiography
#3
Jin-Jin Kim, Dong-Bin Kim, Sung-Won Jang, Eun Joo Cho, Kiyuk Chang, Sang Hong Baek, Ho-Joong Youn, Wook Sung Chung, Ki-Bae Seung, Tai-Ho Rho, Jung Im Jung, Byung-Hee Hwang
Airflow obstruction is associated with increased cardiovascular morbidity and mortality. However, the causal mechanisms linking airflow obstruction with higher incidence of cardiovascular events remain elusive. We evaluated the relationship between airflow obstruction, a key feature of chronic obstructive pulmonary disease (COPD), and prevalence, extent, and severity of coronary atherosclerosis in a large cohort of asymptomatic subjects. Participants were recruited from those undergoing spirometry and coronary computed tomography angiography (CCTA) as part of a general health evaluation from March 2009 to February 2011...
November 14, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/29136345/regional-lung-function-testing-in-children-using-electrical-impedance-tomography
#4
Barbara Vogt, Sarah Löhr, Zhanqi Zhao, Christian Falkenberg, Tobias Ankermann, Norbert Weiler, Inéz Frerichs
OBJECTIVE: To evaluate regional lung function in lung-healthy children before and after exercise challenge using electrical impedance tomography (EIT). METHODS: Regional lung function was examined using EIT in 100 lung-healthy children (three age subgroups: 74-121, 122-155, 156-195 months) at baseline and 10 min after exercise. Global lung function was assessed by spirometry using Z-Scores of FEV1 , FVC, FEV1 /FVC, and FEF75 . The same lung function measures were determined in 912 EIT image pixels to enable the spatial and temporal ventilation distribution analysis...
November 14, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/29131887/effect-of-an-intervention-to-promote-breastfeeding-on-asthma-lung-function-and-atopic-eczema-at-age-16-years-follow-up-of-the-probit-randomized-trial
#5
Carsten Flohr, A John Henderson, Michael S Kramer, Rita Patel, Jennifer Thompson, Sheryl L Rifas-Shiman, Seungmi Yang, Konstantin Vilchuck, Natalia Bogdanovich, Mikhail Hameza, Richard M Martin, Emily Oken
Importance: Atopic diseases, including asthma and atopic eczema, are the most common chronic conditions of childhood. Objective: To investigate whether an intervention to promote prolonged and exclusive breastfeeding protects against asthma, atopic eczema, and low lung function in adolescence. Design, Setting, and Participants: Follow-up of the Promotion of Breastfeeding Intervention Trial (PROBIT), a cluster randomized trial in 30 Belarusian maternity hospitals and affiliated polyclinics; recruitment of 17 046 healthy term infants took place from June 15, 1996, to December 31, 1997...
November 13, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/29129177/copd-x-australian-and-new-zealand-guidelines-for-the-diagnosis-and-management-of-chronic-obstructive-pulmonary-disease-2017-update
#6
Ian A Yang, Juliet L Brown, Johnson George, Sue Jenkins, Christine F McDonald, Vanessa M McDonald, Kirsten Phillips, Brian J Smith, Nicholas A Zwar, Eli Dabscheck
Chronic obstructive pulmonary disease (COPD) is characterised by persistent respiratory symptoms and chronic airflow limitation, and is associated with exacerbations and comorbidities. Advances in the management of COPD are updated quarterly in the national COPD guidelines, the COPD-X plan, published by Lung Foundation Australia in conjunction with the Thoracic Society of Australia and New Zealand and available at http://copdx.org.au. Main recommendations: Spirometry detects persistent airflow limitation (post-bronchodilator FEV1/FVC < 0...
November 20, 2017: Medical Journal of Australia
https://www.readbyqxmd.com/read/29123389/alveolar-capillary-reserve-during-exercise-in-patients-with-chronic-obstructive-pulmonary-disease
#7
Mehrdad Behnia, Courtney M Wheatley, Alberto Avolio, Bruce D Johnson
Background: Factors limiting exercise in patients with COPD are complex. With evidence for accelerated pulmonary vascular aging, destruction of alveolar-capillary bed, and hypoxic pulmonary vasoconstriction, the ability to functionally expand surface area during exercise may become a primary limitation. Purpose: To quantify measures of alveolar-capillary recruitment during exercise and the relationship to exercise capacity in a cohort of COPD patients. Methods: Thirty-two subjects gave consent (53% male, with mean ± standard deviation age 66±9 years, smoking 35±29 pack-years, and Global Initiative for Chronic Obstructive Lung Disease (GOLD) classification of 0-4: 2...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29123150/lung-clearance-index-and-quantitative-computed-tomography-of-post-infectious-bronchiolitis-obliterans-in-infants
#8
Yoon Hee Kim, Hyun Joo Shin, In Suk Sol, Soo Yeon Kim, Jong Deok Kim, Haesung Yoon, Kyung Won Kim, Myung-Joon Kim, Mi-Jung Lee, Myung Hyun Sohn
Post-infectious bronchiolitis obliterans (BO) could be diagnosed via spirometry and chest computed tomography (CT); however, these tests are limited in infants. We aimed to evaluate the utility of lung clearance index (LCI) and air-trapping lung volume from chest CT in infants. This prospective study included 20 infants (mean age, 10.9 ± 6.3 months) diagnosed with post-infectious BO between 2009 and 2016. All subjects underwent multiple breath washout tests. For quantitative analysis of chest CT, the mean lung area attenuation value was used as an individual cutoff to determine the air-trapping lung volume...
November 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29120968/effect-of-pulmonary-rehabilitation-on-inspiratory-capacity-during-6-min-walk-test-in-patients-with-copd-a-prospective-controlled-study
#9
Marc Spielmanns, Tobias Boeselt, Christoph Nell, Jenny Eckhoff, Rembert Andreas Koczulla, Fridericke Sophie Magnet, Jan Hendrik Storre, Wolfram Windisch, Klaus Baum
PURPOSE: Purpose of this study was to analyze the impact of a pulmonary rehabilitation (PR) program on the measured inspiratory capacity (IC) in patients with chronic obstructive pulmonary disease (COPD) while performing a 6-min walk test (6MWT). METHODS: Before and after PR, IC was measured by spirometry both at the beginning and at the end of the 6MWT for 15 patients with COPD in the PR group (PRG) and compared with a similar calisthenics training group (CTG; n = 15)...
November 8, 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/29118577/associations-between-occupational-inhalation-risks-and-feno-levels-in-airway-obstruction-patients-results-from-the-national-health-and-nutrition-examination-survey-2007-2012
#10
Yi-Chih Huang, Mei-Chen Yang
Purpose: To investigate associations between occupational inhalation risks and fractional exhaled nitric oxide (FeNO) levels in patients with chronic obstructive pulmonary disease (COPD). Patients and methods: Data of 16,486 subjects who had undergone spirometry with pre-bronchodilator and post-bronchodilator lung function assessment were retrieved from the National Health and Nutrition Examination Survey, 2007-2012 database. After excluding 2,638 subjects with missing spirometry values, data of 13,336 subjects were included for analysis...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29108795/severity-of-copd-and-its-relationship-with-il-10
#11
Bruna S A Silva, Fábio S Lira, Dionei Ramos, Juliana S Uzeloto, Fabrício Eduardo Rossi, Ana Paula C F Freire, Rebeca N Silva, Iara B Trevisan, Luis Alberto Gobbo, Ercy M C Ramos
BACKGROUND: The present study was designed to compare inflammatory and metabolic responses according to severity of airflow among patients with COPD and to verify the relationship between pulmonary function, body composition, metabolic and inflammatory profile. METHODS: Fifty-one patients with mild to very severe COPD were recruited and divided according lung function in Mild-moderate (GOLD 1-2) n= 21; Severe (GOLD 3) n=25 and Very severe (GOLD 4) n=5. Patients were submitted to assessments of lung function (spirometry), functional exercise capacity (6-min walk test), body composition (Octopolar bioelectrical impedance), metabolic profile (glucose, triglycerides, total cholesterol, HDL-cholesterol and albumin (colorimetric assay)) and inflammatory profile (cytokines: IL-6, IL-10, TNF-α and IL-15 (ELISA))...
November 3, 2017: Cytokine
https://www.readbyqxmd.com/read/29106997/interferon-response-to-rsv-by-bronchial-epithelium-from-children-with-asthma-is-inversely-correlated-with-pulmonary-function
#12
M C Altman, S R Reeves, A R Parker, E Whalen, K M S Misura, K A Barrow, R G James, T S Hallstrand, S F Ziegler, J S Debley
BACKGROUND: Respiratory viral infection in early childhood, including that from respiratory syncytial virus (RSV), has been previously associated with the development of asthma. OBJECTIVE: We aimed to determine whether ex vivo RSV infection of bronchial epithelial cells (BECs) from children with asthma would induce specific gene expression patterns, and whether such patterns associate with lung function among BEC donors. METHODS: Primary BECs from carefully characterized children with asthma (n=18) and matched healthy children without asthma (n=8) were differentiated at an air-liquid interface (ALI) for 21 days...
October 26, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29101282/a-population-based-prospective-cohort-study-examining-the-influence-of-early-life-respiratory-tract-infections-on-school-age-lung-function-and-asthma
#13
Evelien R van Meel, Herman T den Dekker, Niels J Elbert, Pauline W Jansen, Henriëtte A Moll, Irwin K Reiss, Johan C de Jongste, Vincent W V Jaddoe, Liesbeth Duijts
BACKGROUND: Early-life respiratory tract infections could affect airway obstruction and increase asthma risk in later life. However, results from previous studies are inconsistent. OBJECTIVE: We examined the associations of early-life respiratory tract infections with lung function and asthma in school-aged children. METHODS: This study among 5197 children born between April 2002 and January 2006 was embedded in a population-based prospective cohort study...
November 3, 2017: Thorax
https://www.readbyqxmd.com/read/29095316/genome-wide-association-study-for-genetic-variants-related-with-maximal-voluntary-ventilation-reveals-two-novel-genomic-signals-associated-with-lung-function
#14
Yujin Suh, Chaeyoung Lee
Genome-wide association studies (GWAS) for spirometry parameters have been limited to forced vital capacity (FVC), forced expiratory volume in 1 second (FEV1), and their ratio. This study examined to identify genetic variants associated with maximal voluntary ventilation (MVV), an important spirometry parameter presenting inspiratory muscle strength.A total of 8842 Korean subjects participated in the Korean Association REsource Consortium were used to identify nucleotide variants associated with MVV and other spirometry parameters through a GWAS...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29090990/handgrip-strength-in-chronic-obstructive-pulmonary-disease-associations-with-acute-exacerbations-and-body-composition
#15
Carlos H Martinez, Alejandro A Diaz, Catherine A Meldrum, Merry-Lynn N McDonald, Susan Murray, Gregory L Kinney, John E Hokanson, Jeffrey L Curtis, Russell P Bowler, MeiLan K Han, George R Washko, Elizabeth A Regan
RATIONALE: Handgrip strength (HGS) predicts mortality in the elderly, but its determinants and clinical significance in chronic obstructive pulmonary disease (COPD) has not been defined. OBJECTIVES: We tested associations of HGS with pectoralis muscle area (PMA), subcutaneous adipose tissue (SAT), imaging characteristics, and lung function in smokers with COPD, and evaluated the cross-sectional and longitudinal associations of HGS with acute respiratory events. METHODS: We analyzed demographic, clinical, spirometry, HGS, and imaging data of 272 subjects with COPD, obtaining measures of airway thickness, emphysema, PMA, and SAT from chest computed tomography scans...
November 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29083017/pulmonary-prevention-program-in-the-proszowice-county-description-and-results
#16
Wojciech Skucha, Filip Mejza, Pawel Nastalek, Zbigniew Doniec
INTRODUCTION: In the Proszowice county, both lung cancer and chronic obstructive pulmonary disease (COPD) are more common in comparison with other regions of Poland. The purpose of this study was to provide a report on a prevention program carried out in the area to reduce the burden of COPD and lung cancer in the region. MATERIAL AND METHODS: The program consisted of the following: active prevention - questionnaire survey offered to every county inhabitant aged at least 40 and chest X-ray and spirometry performed in selected subjects; and passive prevention - covering multiple educational activities promoting healthy lifestyle...
October 30, 2017: Advances in Respiratory Medicine
https://www.readbyqxmd.com/read/29079449/prospective-study-of-lung-function-and-abdominal-aortic-aneurysm-risk-the-atherosclerosis-risk-in-communities-study
#17
Yasuhiko Kubota, Aaron R Folsom, Kunihiro Matsushita, David Couper, Weihong Tang
BACKGROUND AND AIMS: No prospective study has investigated whether individuals with respiratory impairments, including chronic obstructive pulmonary disease (COPD) and restrictive lung disease (RLD), are at increased risk of abdominal aortic aneurysm (AAA). We aimed to prospectively investigate whether those respiratory impairments are associated with increased AAA risk. METHODS: In 1987-1989, the Atherosclerosis Risk in Communities (ARIC) study followed 14,269 participants aged 45-64 years, without a history of AAA surgery, through 2011...
October 13, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29074811/associations-between-emphysema-like-lung-on-ct-and-incident-airflow-limitation-a-general-population-based-cohort-study
#18
Elizabeth C Oelsner, Benjamin M Smith, Eric A Hoffman, Aaron R Folsom, Steven M Kawut, Joel D Kaufman, Ani Manichaikul, David J Lederer, Joseph E Schwartz, Karol E Watson, Paul L Enright, John H M Austin, Joao A C Lima, Steven J Shea, Robert G Barr
Emphysema on CT is associated with accelerated lung function decline in heavy smokers and patients with COPD; however, in the general population, it is not known whether greater emphysema-like lung on CT is associated with incident COPD. We used data from 2045 adult participants without initial prebronchodilator airflow limitation, classified by FEV1/FVC<0.70, in the Multi-Ethnic Study of Atherosclerosis. Emphysema-like lung on baseline cardiac CT, defined as per cent low attenuation areas<-950HU>upper limit of normal, was associated with increased odds of incident airflow limitation at 5-year follow-up on both prebronchodilator (adjusted OR 2...
October 26, 2017: Thorax
https://www.readbyqxmd.com/read/29072125/the-effects-of-ramadan-intermittent-fasting-rif-on-spirometric-data-of-stable-copd-patients-a-pilot-study
#19
Hajer Zouari, Imed Latiri, Mohamed Mahjoub, Mohamed Boussarsar, Mohamed Benzarti, Ahmed Abdelghani, Helmi Ben Saad
No previous study has raised the effects of RIF on lung function data of chronic obstructive pulmonary disease (COPD) patients. The objective of the present study was to assess the effects of RIF on spirometric data measured in male patients with a stable COPD. Sixteen patients with stable COPD (mean ± SD of age: 64 ± 7 years) who fasted during Ramadan volunteered to the study. Three sessions (Before-R, End-R, and After-R) were selected for spirometry tests that were consistently performed 2.5-4.5 hr before fasting break...
October 1, 2017: American Journal of Men's Health
https://www.readbyqxmd.com/read/29066389/disease-severity-dependence-of-the-longitudinal-association-between-ct-lung-density-and-lung-function-in-smokers
#20
Alejandro A Diaz, Matthew Strand, Harvey O Coxson, James C Ross, Raul San Jose Estepar, David Lynch, Eva M van Rikxoort, Ivan O Rosas, Gary M Hunninghake, Rachel K Putman, Hiroto Hatabu, Andrew Yen, Gregory L Kinney, John E Hokanson, Edwin K Silverman, James Crapo, George R Washko
BACKGROUND: In smokers, the lung parenchyma is characterized by inflammation and emphysema, processes that can result in local gain and loss of lung tissue. CT measures of lung density might reflect lung tissue changes; however, longitudinal data regarding the effects of CT lung tissue on FEV1 in smokers with and without COPD are scarce. METHODS: The 15th percentile of CT lung density was obtained from the scans of 3,390 smokers who completed baseline and 5-year follow-up of the Genetic Epidemiology of COPD (COPDGene) study visits...
October 21, 2017: Chest
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